Die Ilynieuopteren-Gattung Cerceris LATR. 479 



tellum, the post-scutellum and the ovate macula on tlie posterior lateral 

 ang'les of the metathorax, yellow ; wings subhyaline, with a fuscous 

 cloud occupying the marginal cell and extending to the apex of the 

 wing; legs yellow, the base of the coxae and of the anterior and inter- 

 mediate femora, black ; the posterior femora black, with their extreme 

 apex yellow; the posterior tibiae above, except their base, and the tarsi, 

 rufo-piceous. Abdomen : the first segment with a narrow yellow band 

 on its apical margin, the second segment with a large macula at its 

 base, and onother smaller spot on each side of its apical marginal, the 

 three folloM'ing segments with a yellow band on their apical margins, 

 j^ellow ; the three bands attenuated in the middle ; beneath, the second, 

 third and forth segments with transverse attenuated yellow bands in 

 the middle, the second segment sometimes yellow, with a dark macula 

 in the middle. 



39, Cerceris sirdariensis Kadosz. 



Cerceris sirdariensis Radosz. : Reis. Turkest. Mose. 54, o^ 9, Taf. VII. 

 Fig. 13 1877 



Nigra; antennis rufesce?itibus, prothorace mcwulis, Jiumerali, calloso, 

 suhalarij scutello, mefanoto maculis duahus magnis, fasciis abdommalibiis 

 segmentis $ l-o, 5-o, S 2-o, 6-0 pedibusque lideis; fasciis emarginatis, 

 secunda triangidarij ceteris sublunaüs, alis hgalinis, apice fiiscis. 



$. Clypeo liäeo , laminato, elevato, porrecto , margine Ubero nigro, 

 inaequaliter sublmiato, linea longitudinali inter antennas, orbita interna, 

 linea verticis, macidis pone ocidos , fasciis ventralibus tribus, maculisque 

 duabus luteis; ano nigro. 



cJ. Clypeo, facie, linea inter antennas, venire anoque luteis^ segmento 

 abdominali primo nigro. L. 13 mm. 



40. Cerceris solitaria Dahlb. 



Cerceris solitaria DA.m.B.: Hym. Europ. I. 502 1843—45 



Abdominis petiolus rufo-fulvus , basi niger, segmentorum margines 

 postici leviter fnlvo-brunneo-marginati, Thorax macidis 4, facies, pruncta 

 2 occipitis et pedes lutea; tibiae posticae nigro-fuscae. Antennae fulvae, 

 medio nigrae. Alae subtestaceo-hyalinae, disco et apice sordidae fumato- 

 violascentes. Clypeus et thorax mutica. Abdomen fasciis fulvis. 



41. Cerceris spinipectus Smith. 



Cerceris spinipectus Smith: Cat. Hym. Ins. Brit. Mus. IV. 443, o^ 9 • 1856 



Female. Length 8 lines. — Head yellow, with the cheeks beneath 

 and the maxillae black ; a black spot on the vertex touching the orbit 



